Moderate
If in a coin P(H) = 2P(T) then prob. of head is ______________?
Correct answer: B. 2/3
- A. 1/3
- B. 2/3
- C. 1/2
- D. 0
Explanation
Let P(T)=p, so P(H)=2p. Since P(H)+P(T)=1, 3p=1 and therefore P(H)=2/3.
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